Pith Number

pith:STC6C2Z3

pith:2011:STC6C2Z3I6QW3XGNV2SRFFSAD4

not attested not anchored not stored refs pending

Multi-Task Averaging

Bela A. Frigyik, Maya R. Gupta, Sergey Feldman

arxiv:1107.4390 v4 · 2011-07-21 · stat.ML · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{STC6C2Z3I6QW3XGNV2SRFFSAD4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:21:42.732732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94c5e16b3b47a16ddccdaea51296401f3e63c7451709eba99d436c1bcf4cd1dd

Aliases

arxiv: 1107.4390 · arxiv_version: 1107.4390v4 · doi: 10.48550/arxiv.1107.4390 · pith_short_12: STC6C2Z3I6QW · pith_short_16: STC6C2Z3I6QW3XGN · pith_short_8: STC6C2Z3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/STC6C2Z3I6QW3XGNV2SRFFSAD4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 94c5e16b3b47a16ddccdaea51296401f3e63c7451709eba99d436c1bcf4cd1dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1f1400035e48190732bbb722d532677f587d5c633fd3649788982aa64fbb608",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-07-21T22:10:22Z",
    "title_canon_sha256": "73ef5d19a6bfe040f7e0401ae860590355c5523382cb3e03ce23ff0c088066ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4390",
    "kind": "arxiv",
    "version": 4
  }
}